I feel like Imagination Tech can't die fast enough. These guys aggressively created patent clouds around anything and everything 3D graphic. It wasn't until a lot of the base patents on 3D acceleration started expiring that anyone would even consider the move Apple made. I hope that in 5 years we've got SoC's with fully open GPUs that are at least as powerful as the old 3Dfx Voodoo and Nvidia TNT series from the 90s.